Pork Shoulder Butt or Pork Shoulder Picnic (what I used) Liquid Smoke (hickory) 1 can Dr. Pepper or Root Beer Your Choice of BBQ sauce Sliced Onions and Minced Garlic Cloves Salt and Pepper. Garlic Powder or Pork Rub. Put me on top of garlic and onion. Dust meat with garlic powder. Add a few drops of liquid smoke. Pour in pop. Spread on barbecue sauce. Cover and cook for 9 to 10 hours. Drain, pull apart, add barbecue sauce. Optional add 2 tablespoons of mustard and Apple cider vinegar.